Knowledge Base
Guides, product updates, technical research and transparency reports.
Latest articles (27)
Sola Protocol Technical Analysis | High-Throughput, Low-Latency, Low-Packet-Loss VPN Protocol
Sola is SingLink's next-generation, in-house VPN transport protocol, created by redesigning the core transport architecture on the foundation of SingLink 2.0, with a focus on effective throughput, low latency, low packet loss, sustained performance, and network adaptability.
The Modern VLESS Stack in 2026
VLESS can no longer be summarized simply as a protocol with no encryption. This evidence-led guide separates the roles of VLESS Encryption, TLS, REALITY, XTLS Vision, XHTTP, XUDP, multiplexing, FinalMask, Browser Dialer, and AnyTLS—and identifies what each layer does not provide.
SingLink 2.0 Protocol
SingLink 2.0 is the official network transport protocol developed in-house by SingLinkVPN, not a client software version. This guide explains identity verification, DNS handling, smart routing, encrypted sessions, TCP and UDP encapsulation, connection health checks, exception recovery, and technical differences from other protocols.
What is a Proxy Service Provider?
In the field of internet access, a proxy service provider (often called "airport" in Chinese) refers to platforms that provide proxy node services.
What is WireGuard?
WireGuard is a next-generation VPN protocol known for its simplicity, efficiency, and security.
What is a Proxy?
A proxy server acts as an intermediary in the network, helping to forward your network requests. Learn about proxy types and use cases.
What is SSTP?
SSTP is a Microsoft VPN protocol using SSL/TLS.
What is Shadowrocket?
Shadowrocket is the most popular proxy client on iOS, supporting multiple protocols.
What is VMess?
VMess is V2Ray's original encrypted communication protocol with multiple transport options.
What is OpenVPN?
OpenVPN is an open-source VPN protocol known for its security and flexibility.
What is PPTP?
PPTP is one of the oldest VPN protocols, not recommended due to low security.
What is Hysteria/TUIC/Reality?
Learn about the latest proxy protocols representing cutting-edge high availability technology.